>Maybe it only manifests on maturity, and Rael's got his head too far >up his arse to have ever noticed.
Well, that's almost certain. But how often do quarians see each other sans suit? It might not be that difficult to go without noticing it for years because no one sees you retaining the same physical age. (Of course, Zira might have noticed it, and he might have brushed it off.)
"Everyone gets lost in the darkness Dreamers learn to steer by the stars..." - Rush, "The Pass"